Question

Write an explanatory note on: Biotic and abiotic agents of pollination.

Hint:

Check whether the carrier of pollen is alive (biotic) or a physical force (abiotic).

Answer 1

Step 1: Understanding the Concept:
Pollen has to travel from the anther to the stigma for pollination to happen, and different plants rely on different carriers, called pollinating agents, to move it.

Step 2: Describe biotic agents.
Biotic agents are living carriers of pollen, including insects (bees, butterflies, moths, beetles), birds (like sunbirds and hummingbirds), bats, and even some snails; flowers pollinated this way are usually brightly coloured, scented, and produce nectar to attract these visitors.

Step 3: Describe abiotic agents.
Abiotic agents are non-living forces that move pollen, mainly wind (anemophily) and water (hydrophily). Wind is the most common abiotic pollinating agent, and wind-pollinated flowers usually produce very large amounts of light, dry pollen and often lack showy petals since they do not need to attract a visitor.

Final Answer:
Biotic agents of pollination are living carriers like insects, birds, and bats, while abiotic agents are non-living forces, mainly wind and water, with wind being the most common abiotic agent.